Ehm... echolocation? Really? Gotta say, I'm quite a bit sceptical about that. Dogs will bark for a number of reasons, and I'd say it's quite an assumption to suggest he's listening to the echo rather than listening to other sounds / navigating by smell. Nothing in the video itself at least seemed to really suggest echolocation.

That said, yay for the dog and owner, he's obviously very loved and well-kept.

Aw man, I love things like this, makes me all fuzzy inside and helps me realize how resilient animals truly are. I remember when I was about 13 and I was telling the mother of one of my friend's that people who are blind can use echolocation to 'see'. She argued with me, refusing to believe it was true because her ONE blind friend didn't use echolocation. Just because I can see doesn't mean I can do fucking gymnastics. That was the day that I realized just because someone is old, it definitely does NOT mean that they know what they are talking about.